AutoCodes – Cadillac – U010C Cadillac

U010C Cadillac Code - Lost Communication with Turbocharger Boost Control Module

Quick Answer

Devices connected to the Powertrain High-Speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Turbocharger Vane Position Actuator, Turbocharger Vane Position Actuator harness is open or shorted, Turbocharger Vane Position Actuator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: U010C Cadillac indicates Lost Communication with Turbocharger Boost Control Module.
Common causes: Common causes include Faulty Turbocharger Vane Position Actuator, Turbocharger Vane Position Actuator harness is open or shorted, Turbocharger Vane Position Actuator circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 308

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U010C Cadillac Description

Devices connected to the Powertrain High-Speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored DTC. The DTC will be set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U010C Cadillac - Lost Communication with Turbocharger Boost Control Module - AutoCodes.com — U010C Cadillac Code - Lost Communication with Turbocharger Boost Control Module

What does this mean?

What are the Possible Causes of the DTC U010C Cadillac?

Faulty Turbocharger Vane Position Actuator
Turbocharger Vane Position Actuator harness is open or shorted
Turbocharger Vane Position Actuator circuit poor electrical connection

How to Fix the DTC U010C Cadillac?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U010C Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U010C Cadillac Code

1. What does the OBDII code U010C mean on a Cadillac?

U010C indicates a loss of communication between the vehicleâ€™s main computer (ECM/PCM) and the Turbocharger Boost Control Module.

2. What are the common symptoms of the U010C code on a Cadillac?

Symptoms may include reduced engine performance, lack of turbo boost, poor acceleration, illuminated check engine light, and possibly entering limp mode.

3. What causes the U010C code to appear on a Cadillac?

Common causes include faulty wiring or connectors, a malfunctioning Turbocharger Boost Control Module, a failing ECM, or network communication issues in the vehicleâ€™s CAN bus system.

4. Can I drive my Cadillac with the U010C code?

Driving with this code is not recommended, as it can lead to reduced performance, potential damage to the turbocharger system, and unsafe driving conditions.

5. How do I diagnose the U010C code on my Cadillac?

Start by inspecting the wiring and connectors for damage or corrosion, check the CAN bus system for continuity, and test the Turbocharger Boost Control Module and ECM for proper functionality.

6. How do I fix the U010C code on a Cadillac?

Repairs may involve replacing damaged wiring or connectors, reprogramming or replacing the Turbocharger Boost Control Module, or addressing issues in the CAN bus communication system.

7. Can a weak battery cause the U010C code on a Cadillac?

Yes, a weak or failing battery can cause communication issues in the CAN bus network, potentially triggering the U010C code.

8. Is the U010C code specific to the turbocharger system?

Yes, this code is specific to a communication failure between the ECM and the Turbocharger Boost Control Module.

9. Will clearing the U010C code fix the issue on a Cadillac?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be diagnosed and repaired to prevent the code from returning.

10. How much does it cost to fix the U010C code on a Cadillac?

The repair cost varies depending on the root cause, ranging from $50 for simple wiring repairs to over $1,000 if the Turbocharger Boost Control Module or ECM needs replacement.